Heat dissipating device for loudspeaker voice coil
US3991286A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 2, 1975 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | Jun 2, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/022
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The coil form for a loudspeaker voice coil is made of a material having high thermal conductivity. The coil form is attached to or integrally formed with a highly thermally conductive spider member which resiliently supports the coil form on the frame structure of the speaker, which also has high thermal conductivity. In one embodiment of the invention a heat sink member to facilitate the dissipation of the thermal energy is attached to the speaker frame structure. In an embodiment involving a horn type speaker, the horn element, which is made of a thermally conductive material, is attached to the speaker frame and also functions as a heat dissipator. In this manner, the likelihood of overheating of the speaker voice coil is greatly diminished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.